Add logging handling for API integer params

When encoding the values to be logged with lograge we handled all
cases except Integer, which means legit int parameters being sent
to the API would be logged as null, this adds encoding for integer
parameters as well.

changelogs/unreleased/cat-readd-logging-for-ints-273663.yml

+---
+title: Fix logging handling for API integer params
+merge_request: 46551
+author:
+type: fixed

lib/gitlab/grape_logging/formatters/lograge_with_timestamp.rb

@@ -41,6 +41,8 @@ module Gitlab
             data.map! { |v| utf8_encode_values(v) }
           when String
             encode_utf8(data)
+          when Integer
+            utf8_encode_values(data.to_s)
           end
         end
       end

spec/lib/gitlab/grape_logging/formatters/lograge_with_timestamp_spec.rb

@@ -15,7 +15,8 @@ RSpec.describe Gitlab::GrapeLogging::Formatters::LogrageWithTimestamp do
       path: '/api/v4/projects/1',
       params: {
         'description': '[FILTERED]',
-        'name': 'gitlab test'
+        'name': 'gitlab test',
+        'int': 42
       },
       host: 'localhost',
       remote_ip: '127.0.0.1',
@@ -44,7 +45,8 @@ RSpec.describe Gitlab::GrapeLogging::Formatters::LogrageWithTimestamp do
 
     expect(params).to eq([
       { 'key' => 'description', 'value' => '[FILTERED]' },
-      { 'key' => 'name', 'value' => 'gitlab test' }
+      { 'key' => 'name', 'value' => 'gitlab test' },
+      { 'key' => 'int', 'value' => '42' }
     ])
   end
 end